on saturday, a national security council spokes woman urged north korea to let 85-year-old merrill newman return home to the united states. newman is a korean war veteran. he was detained in october as his tour group was leaving the communist country. over the weekend korean state media released this video of newman reading a handwritten, scripted apology for so-called crimes committed during the korean war. the u.s. is also pushing for the release of a second american, kenneth bae, who's been in prison since last year. bae's sister spoke to chris cuomo about the last time she heard from her brother. >> last time we've had any news of kenneth when my mother was visiting back in october so she was there from the 11th through the 14th and she got to visit him in the hospital and we haven't had any updates since and at that time, i think his condition had improved some because he had been hospitalized for several months but, you know, he has chronic conditions that require ongoing attention by his doctors at home which is why he needs to come home now. >> help us understand that a little bit